1BWW:
reference: 1.7 A structure of the stabilized REIv mutant T39K. Application of local NCS restraints., Uson I, Pohl E, Schneider TR, Dauter Z, Schmidt A, Fritz HJ, Sheldrick GM, Acta Crystallogr D Biol Crystallogr 1999 Jun;55 ( Pt 6):1158-67. PMID: 10329778

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